Bolt-lock.



No. 893,965. PATENTED JULY 21, 1908,

W. s. WOOTTON. BOLT LOCK.

APPLICATION IHLED AUG. 14, 19 07.

L/4 W .'*'*l/ 5 4 2 z 6 6 WILLIAM S. WOOTTON, OF ROANOKE, VIRGINIA.

BOLT-LOCK.

Specification of Letters Patent.

Patented July 21, 1908.

Application filed August 14, 1907. Serial No. 388,438.

To all whom it may concern:

Be it known that 1, WILLIAM S. WooTToN, a citizen of the United States, residing at Roanoke, in the county of Roanokeand State of Virginia, have invented certain new and useful Improvements in Bolt-Locks, of

which the following is a specification.

My invention relates to improvements in bolt-locks designed with-special reference 1, for use in connection with railway-rail joints.

The invention relates more particularly to bolt and nut-locks of this class in which the threaded nut or bar is stationary and the angle-bars are drawn together to embrace J the web of the rails by revolving the boltshank by means of the head thereof, the

latter being provided on its impinging surface with engaging means toprevent the bolt turning back when drawn up.

The primary object of the invention is to provide a generally-improved lock of this class which will be exceedingly simple in construction, cheap of manufacture, efficient in use, and much better adapted to its intended purposes than any other device with which I am acquainted.

With these ends in view, the invention consists in the novel construction, arrangement and combination of parts, hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings, forming a part of this specification Figure ,1, is a transverse sectional view of a railway-rail joint provided with securing means embodying my invention. Fig. 2, a view of the. inner or impinging surface of the bolt-head. Fig. 3, a view of one of the anglebars showing the locking-washer in looking engagement with the improved bolt-head. Fig. 4, a view of the inner side of the improved locking-washer when formed to engage with the outer and inner sides of the angle-bar and bolt-head, respectively. Fig. 5, a view of a modified form of the inner or impinging side of the singularly-extended nut or bar for engagement with one of the angle-bars. Fig. 6, a view of another form of nut same being triangular shaped. Fig. 7, a perspective view of a rail-joint provided with another form of angularly-extended nut.

Similar characters of reference designate like parts throughout all the figures of the drawings.

The rails 1, and angle-bars 2, are of the usual construction and, preferably, provided with the usual longitudinal bolt-shank slot-openings in the angle bars and web 1 the rails so that, if desired, a locking-washer may be used as hereinafter described.

The bolt-shank 3, and head 4, may be of i the usual construction'but the impinging surface 5, of the latter is provided with radially and diagonallydisposed recessgrooves 6, extending from near. the boltshank 3, to the corners of the bolt-head and growing deeper and wider from the inner ends outwardly, the outer corners at 4, being thus cut away by the grooves 6.

The threaded ends of the bolt-shanks are adapted to take into threaded openings of the singularly-extended nuts 7, as shown in Figs. 5, 6, and 7, the angular extensions of the nuts being adapted to engage some portion of the angle-bar 2, as for example, the flanged portion 2, of the nut, as shown most clearly in Fig. 7, thus preventing the nut from turning when the bolt is drawn up. Furthermore, as these angularly-extended nuts afford a large perpendicular bearingsurface on the contiguous angle-bar they are adapted to bring and maintain the parts of the joint in their true relative position or adjustment.

The rectangular nut or bar 7, as shown in Fig. 5, extends along the angle-bar 2, and,

preferably, at right angles to the blots 3, so that the latter when drawn up will tend to not only bring the parts to their proper perpendicular position but will force the anglebars 2, in parallel position with each other and the ends of the rails in alinement. As a means of keeping the bar 7, in its proper position, the impinging surface of the same may be provided with marginal ribs 7, as shown in Fig. 5, which will embed themselves into the contiguous surface of the angle-bar 2.

When bolts are drawn up snugly, they are prevented from turning loose by reason of the fact that the sharp edges 6 of the recessgrooves will engage or embed themselves with the contiguous surface of the angle-bar, but I prefer, however, to lock the bolt by means of a locking-washer 1.0, provided on each side of the bolt opening with diametrically-opposite concavo-convex or dished portions 11, which are adapted to take into, or be seated within, the bolt-shank slot-opening of the angle-bar on each side of the bolt-shank when the head 4, of the latter has been drawn up against the angle-bar as shown in Fig. 1.

The locking-washer is interlocked with one of the recess-grooves 6, by driving a punch, or other pointed instrument, between the side of the washer and the adjacent anglebar, opposite one of said recess-grooves, whereby a rib or raised portion 12, 1s forced outwardly into the adjacent recess-groove as shown in Fig. 3, thus effectually preventing the loosening of the bolt when drawn up. necessary, or desirable, a number of ribs may be formed to take into corresponding recessgrooves of the head.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention, will be readily understood.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is,

1. A bolt lock for railway-rail oints, comprising a rail, angle-bars provided with slotopenings, a bolt-shank mounted in said slotopenings and provided with a head having its impinging surface provided with gradually widening and deepening radially-extending recess grooves extending from the boltshank to the corners of said head, a stationary nut mounted on said bolt-shank and engaging a portion of one of said angle-bars, and a locking-washer provided with oppositelydisposed concavo-convex portions taking into the slot-openings .containing said boltshank and adapted to be provided with an outwardly-extending rib taking into one of said recessgrooves.

2. In a bolt-lock for railway-rail joints, a

stationary angularly-extended nut, a boltthreaded in said angularly-extended nut and provided with a head having grooves on its impinging surface and extending from'its corners, and a locking-washer provided with inwardly-extending diametrically opposite dished portions about its bolt-shank opening adapted to take into the bolt-shank-opening of the angle-bar, said washer being adapted to be provided with an outwardly-extending rib in its rim portion taking into one of said grooves of said head.

In testimony whereof I have afiixed my signature, in presence of two witnesses.

WILLIAM S. VVOOTTON. Witnesses:

M. B. WOOTTON, J. H. MAXWELL. 

